Machine for ironing furs



Sept, l2, E939.

G. FROMMER MACHINE FR IRONING FURS F'iled Dec. 18, 1937 Patented Sept.l2, 1939 PATENT OFFICE MACHINE FOR IRONING FURS Gza Frommer, Budapest,Hungary, assignor to the rm Pannonia Baranybornemesito es Kereskedelmir. t., Ujpest, Hungary, a company of Hungary Application December 1s,1937, serial No. 180,665 '.In Hungary September 27, 1937 1 Claim.

There are already known, on the one hand a type of machines for ironingfurs which is tted with an ironing cylinder on which ribs extendingalong generatrices of the cylinder are provided, and, on the other handa type of machine for ironing furs which is fitted with an ironingcylinder reciprocating in the axial direction during operation, on whichcylinder ribs arranged in directions sloping alternately to the rightand to the left relative to the direction of the generatrix, and combsarranged between such ribs are provided.

The first-named type of machines for ironing furs indeed satisfactorilystraightens out and stretches the hairs of the fur, but at the same timelays the said hairs down and compresses them. This latter circumstance,however,y representsa great drawback, because the fur hairs laiddown andcompressed substantially impair the quality and therewith also the valueof the fur.

As regards the type of machine named in the lsecond place, it does notindeed compress the hairs, i. e. it does indeed stir up or raise up thehairs, but it does not stretch the said hairs suiliciently, whichcircumstance likewise results in goods of impaired quality. In additionhereto the comb employed in this type of machine also impairs thequality of the gOOdS, as it not only dis composes the hairs but alsotears out a substantial lportion thereof and in general places a verysevere strain on the fur. v

In addition to the drawbacks enumerated above, the types of machinesnamed also have the further drawback, that in order to obtain goods fitfor use it is necessary that the fur to be treated should be passedthrough the machine a verygreat number of times, which fact not onlymeans loss of time and extra expense, but also iniiuences the quality ofthe fur in a disadvantageous sense.

The type of machine for ironing fursy which forms the object of thepresent invention eliminates all these drawbacks and renders possiblethe production of fur goods of the kind which is the only one valuablefrom a commercial point of view, i. e. of such fur goods as have theirhairs properly stretched and standing-up, whilst at the same timepreserving the fur from any undue strain, and reducing the time oftreatment and the cost of production in the highest possible degree. i

This result is achieved according to the invention by employing, in afur-ironing machine fitted .with a rotating or rotating and reciprofcating ironing cylinder, an ironing cylinder of such a kind in whichthere is provided a rib or ribs for raising and stretching the hairs ofthe fur (called in what follows, for the sake of brevity, simply:raising ribs) and a member or members effecting only the stretching ofthe hairs, the two kinds of devices being preferably arranged in mutualsuccession, the vraising ribs Ibeing preferably sloping alternately tothe right and to the left relative tothe direction of the generatrix,whereas the stretching members consist of a single rib or of a pluralityof preferably parallel ribs, which is or are preferably ledge-orwedge-shaped and possess a chamfered working edge or chamfered WorkingAedges on a level With the cylindriacl surface of the cylinder. It is tobe understood that the term generatrix wherever used herein refers to thgeneratrix of the cylinder.

Accordingly, in the machine according to the invention, thedisadvantageous combs have been entirely dispensed with, which factresults in preserving the fur in a still greater degree from any unduestrain placed on it.

The drawing represents an embodiment, shown by way of example, of theironing cylinder and of the stretching ribs of the fur-ironing machineaccording to the invention.y Notably Fig. y1 is a side elevation of theironing cylinder,

Fig. 2 is a cross-section of the same,

Fig. 3 is the cylindrical surface of the cylinder developed intoa'plane,

l is the ironing cylinder, 2 are the ribs for stirring up or raising thehairs of the fur, the said ribs being developed from grooves 3 oftriangular cross-section provided in the cylindrical surface of'thecylinder. Each of the grooves 3` forms a wall b radially disposed withrespect to the groove the edge of Vwhich wall at its intersection Withthe cylindrical surface constitutes what I have termed a rib 2. Becauseof this formation the said ribs 2 strike against the roots of the hairof the fur, so that said hair enters for a moment the grooves 3. Thisstriking is called in the tradethe raising of the hair, and for thisreason the edges 2 are termed raising ribs. However, inasmuch as duringthe continued motion of the ribs 2 in Contact with the fur, the hair isagain pressed down and slightly stretched by the friction of the ribs;these ribs have been termed "raising and stretching ribs in order toexpress this dual function. These ribs 2 are preferably slopingalternately towards the right and towards the left relative to thedirection of the generatrix of the cylinder, but they ymay also bearranged along generatrices, or they may be sloping towards the rightonly, or

towards the left only, no matter whether only a single rib or aplurality of ribs is provided. d are the members effecting exclusivelythe stretching of the hairs of the fur, notably, a rib or ribs which arearranged in succession so as to alternate with the raising ribs 2, Fig.3. It will of course be understood by those skilled in the art, that allsmooth portions of the cylindrical surface operate as ironing surfaces,said smooth portions being indicated in the drawing by the referencecharacter a. In case the stretching member is composed of a plurality ofribs, the latter should preferably be of straight-lined shape, parallelto toeach other and to the direction of the generatrix; even if only asingle rib is provided, it will be preferable for it to bestraight-lined and parallel to the generatrix. The rib or ribs maybeintegral with the cylinder body, but preferably the4 rib or ribs lforming a stretching member are-constructed as exchangeable inserts 4which may'be solid (Fig. 2) or stamped of sheet metal. Finally, the rib-or ribs may be of one piece or composed of a plurality of. pieces, Thedrawing represents a very advantageous and approved arrangement of theribs 4, according to which the stretching ribs 4- are arranged betweenthe divergent ends of the raising ribs 2, so as to extend 'from thecentre plane I-I-perpendicula'r to the axis of the cylinder vI-up to theedge of th'e said cylinder (Figs. 1 and 3), so that the various inserts.4' are alternately situated on opposite sides "f the center line I-I'of'the cylindrical surface ofthe cylinder. The experiments made as Well aspractical experience have shown that by means of this arrangement of theribs 2 and 4 it is not only possible to produce high-quality goods the`quality of which substantially exceeds that of the fur goods obtainedwith the aid of the type of that moreover a great saving in labor can albe achieved, whilst at `the same time preserving the fur in a very highdegree frommny undue strain. The range of the invention naturally alsocovers the constructional form in which the stretching rib or ribsextend over the whole length of the cylinder or over a part of the same.

It should be added that it is also possible to arrange the rib or ribsi. e. the insert or inserts in such a manner as to enable them to be re-1 ciprocated in the axial direction or in a direction forming an anglewith the axial direction during operation, in case it is desired toimpart to the ironing cylinder performing a rotary motion only also theadvantages of the ironing cyl- 2 inder or combing membenwhich inaddition to rotation is also reciprocating in the axial direction.

What I claim is:

In a machine for A ironing furs, a rotatable 2 and axially reciprocablecylinder provided with hair-raising ribs'extending across the cylinderin alternately diverging paths at opposite edges of the cylinderandhair-stretching members disposed between the divergent ends of theraising 3 ribs and extending from opposite edgesof the cylinder toapproximately the central plane of said cylinder perpendicular to itsaxis.

GzA momma.

f fur ironing machines employed up to now, but 5

